the line we're most concerned about, through louisiana, arkansas, i think a little bit of mississippi. some west tennessee, as well. not just potential for tornadoes to pop up until 3:00 or 4:00 in the morning, but we know there will be straight line wind damage. this front is moving so quickly, diane. >> out in the elements again for us tonight. thank you so much, sam champion reporting in. >>> and, in washington, the nation has its new secretary of state. john kerry was confirmed today by his senate colleagues by a vote of 94-3. he's expected to be sworn in and begin work later this week. and, of course, he walks into the shadow of the departing secretary of state, hillary clinton. who took to the stage at a farewell global town hall today, answering questions from around the world. and joking, she's ready to catch up, quote, on 20 years of sleep deprivation. "nightline" anchor cynthia mcfadden asked her y off. >> reporter: saturday morning -- >> yes. >> reporter: what happens? >> well, i hope i get to sleep in. you know, i'm thinking about that, because it will be the first time in